fla 9 Posted January 6, 2005 I know iits best to use G12+, but is the stuff from GSF compatible (if so which one? - Stevemac?) - I will be flushing my cooling system this weekend. BTW, would you recommend a rad flush after rinsing through with water before refilling or is that overkill? Car's only done 49k but there is still the hissing sound which I will be exploring (mentioned in another thread). It has aircon (needs regassing) but I suspect this may have something to do with the hiss. thanks gentlemen Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted January 6, 2005 Best to stick with G12+ as it's been specially formulated to not gel up when mixed with older coolant additives. Quote Share this post Link to post Share on other sites
fla 9 Posted January 6, 2005 Actually the system will be flushed through so it wont be mixing with anything else - there will be a mix of just GSF coolant and water in a (hopefully) clean cooling system. My local VW dealer is not very clued up about Cs. Quote Share this post Link to post Share on other sites
Supercharged 2 Posted January 6, 2005 I'd just stick with the G12+, GSF sell that as well and there hardly any difference in price... Quote Share this post Link to post Share on other sites
